Frequencies for first 10,000 rows of pct012e127 variable in sf12010860us24 dataset :

   20 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,609       96.09       96.09
          1 |        326        3.26       99.35
          2 |         47        0.47       99.82
          3 |         14        0.14       99.96
          4 |          1        0.01       99.97
          5 |          2        0.02       99.99
          6 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 Apr 2017